SN74LVC2G34MDCKREP Equivalent & Substitute Parts

Part Overview

The SN74LVC2G34MDCKREP is a non-inverting buffer logic IC manufactured by Texas Instruments, featuring 2 elements with 1 bit per element and push-pull output configuration. This device operates across a supply voltage range of 1.65V to 5.5V and is housed in a 6-pin SC-70 surface mount package. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit alternative manufacturers or package configurations while maintaining functional and electrical equivalence.

Key Parameters

Parameter	Value
Logic Type	Buffer, Non-Inverting
Number of Elements	2
Number of Bits per Element	1
Output Type	Push-Pull
Current - Output High, Low	24mA, 24mA
Voltage - Supply	1.65V ~ 5.5V
Operating Temperature	-55°C ~ 125°C (TA)
Mounting Type	Surface Mount
Package / Case	6-TSSOP, SC-88, SOT-363
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LVC2G34MDCKREP is determined by the following criteria:

Core Functional Parameters (Must Match):

Logic Type: Buffer, Non-Inverting
Number of Elements: 2
Number of Bits per Element: 1
Output Type: Push-Pull
Voltage - Supply: 1.65V ~ 5.5V
Mounting Type: Surface Mount
Package / Case: 6-TSSOP, SC-88, SOT-363 (compatible variants)

Acceptable Variations:

Output current specifications may exceed the main part (higher current capability is acceptable)
Operating temperature range may be narrower (minimum -40°C acceptable vs. -55°C)
Manufacturer and base product number may differ
Product status may vary (Active or Obsolete)
Automotive qualification (AEC-Q100) is an enhancement, not a requirement

All identified substitute parts meet these criteria and are electrically and mechanically compatible with the SN74LVC2G34MDCKREP.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements	Output Current (High/Low)	Supply Voltage	Temp Range	Package	Status
SN74LVC2G34MDCKREP	Texas Instruments	Buffer, Non-Inverting	2	24mA / 24mA	1.65V ~ 5.5V	-55°C ~ 125°C	SC-70-6	Active
NL27WZ16DFT2G	onsemi	Buffer, Non-Inverting	2	32mA / 32mA	1.65V ~ 5.5V	-55°C ~ 125°C	SC-88/SC70-6/SOT-363	Active
74LVC2G34DW-7	Diodes Incorporated	Buffer, Non-Inverting	2	32mA / 32mA	1.65V ~ 5.5V	-40°C ~ 125°C	SOT-363	Active
74LVC2G34GV,125	Nexperia USA Inc.	Buffer, Non-Inverting	2	32mA / 32mA	1.65V ~ 5.5V	-40°C ~ 125°C	6-TSOP	Active
74LVC2G34GW,125	Nexperia USA Inc.	Buffer, Non-Inverting	2	32mA / 32mA	1.65V ~ 5.5V	-40°C ~ 125°C	6-TSSOP	Active
74LVC2G34GW-Q100,1	Nexperia USA Inc.	Buffer, Non-Inverting	2	32mA / 32mA	1.65V ~ 5.5V	-40°C ~ 125°C	6-TSSOP	Active
NLV27WZ16DFT2G	onsemi	Buffer, Non-Inverting	2	32mA / 32mA	1.65V ~ 5.5V	-55°C ~ 125°C	SC-88/SC70-6/SOT-363	Obsolete

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Compatibility):

The 74LVC2G34GW,125 and 74LVC2G34GV,125 from Nexperia USA Inc. are direct functional equivalents with identical electrical specifications and active product status. Both maintain the 1.65V to 5.5V supply voltage range and push-pull output configuration. The 74LVC2G34GW,125 is packaged in 6-TSSOP format, while the 74LVC2G34GV,125 uses 6-TSOP packaging. Both are RoHS3 compliant with unlimited moisture sensitivity rating.

Automotive-Qualified Alternative:

The 74LVC2G34GW-Q100,1 provides the same electrical and functional characteristics as the standard 74LVC2G34GW,125 with additional AEC-Q100 automotive qualification. This variant is suitable for applications requiring automotive-grade components.

Extended Temperature Range Options:

The NL27WZ16DFT2G from onsemi maintains the full -55°C to 125°C operating temperature range matching the SN74LVC2G34MDCKREP, with enhanced output current capability (32mA vs. 24mA). This part is available in SC-88/SC70-6/SOT-363 package variants and carries active product status.

Alternative Manufacturer (Diodes Incorporated):

The 74LVC2G34DW-7 from Diodes Incorporated provides functional equivalence with enhanced output current (32mA) and is packaged in SOT-363 format. Operating temperature range is -40°C to 125°C, which is acceptable for most applications not requiring extended low-temperature operation.

Obsolete Part (Not Recommended for New Designs):

The NLV27WZ16DFT2G from onsemi is marked as obsolete and should not be selected for new designs despite meeting electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher output current than the SN74LVC2G34MDCKREP?

A: Yes. The substitute parts with 32mA output current (NL27WZ16DFT2G, 74LVC2G34DW-7, 74LVC2G34GV,125, 74LVC2G34GW,125, 74LVC2G34GW-Q100,1) are fully compatible. Higher output current capability does not create compatibility issues and provides additional design margin.

Q: What is the difference between the 74LVC2G34GW,125 and 74LVC2G34GV,125?

A: Both parts are electrically identical non-inverting buffers from Nexperia with matching specifications. The primary difference is packaging: 74LVC2G34GW,125 uses 6-TSSOP format while 74LVC2G34GV,125 uses 6-TSOP format. Selection depends on PCB layout requirements and available footprints.

Q: Is the 74LVC2G34GW-Q100,1 suitable for automotive applications?

A: Yes. The 74LVC2G34GW-Q100,1 carries AEC-Q100 automotive qualification and is specifically designed for automotive-grade applications. It maintains all electrical specifications of the standard 74LVC2G34GW,125.

Q: Why is the NLV27WZ16DFT2G marked as obsolete?

A: The NLV27WZ16DFT2G has been discontinued by onsemi and is no longer in active production. While existing inventory may be available, new designs should not rely on this part due to future supply uncertainty.

Q: Can I substitute the SN74LVC2G34MDCKREP with a part having a narrower operating temperature range?

A: Yes, if your application operates within the narrower temperature range. The 74LVC2G34DW-7, 74LVC2G34GV,125, 74LVC2G34GW,125, and 74LVC2G34GW-Q100,1 all operate from -40°C to 125°C, which is acceptable for most commercial and industrial applications. Only the NL27WZ16DFT2G and NLV27WZ16DFT2G maintain the full -55°C to 125°C range.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts carry RoHS3 compliance status and unlimited moisture sensitivity rating (MSL 1), matching the environmental compliance profile of the SN74LVC2G34MDCKREP.

Q: Which substitute offers the best availability?

A: The 74LVC2G34GV,125 from Nexperia USA Inc. shows the highest inventory level at 188,497 pieces in stock, followed by 74LVC2G34GW,125 with 18,741 pieces. Both are suitable for immediate procurement.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message